Pardon me if I made the wrong assumption about the premise of your question. But I think my original point stands--we can posit a "creator for the creator" and a "designer for the designer" back in an infinite chain of causation, but until you're willing to make that very first link between life and a designer, it's a moot point.
But you have made the first link between life, and a designer. And in fact, you appear (at least to me) to be suggesting that the complexity of life suggests to you, that a designer is requisite.
And so I'm asking YOU (who have made the link) how you can suggest that a designer is requisite to explain the complexity of life, but that the even greater complexity of the designer himself, doesn't require a designer?
What is your explanation?